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WO2006062787A2 - Sacs a joint arriere facile a ouvrir et methodes de conditionnement associees - Google Patents

Sacs a joint arriere facile a ouvrir et methodes de conditionnement associees Download PDF

Info

Publication number
WO2006062787A2
WO2006062787A2 PCT/US2005/043298 US2005043298W WO2006062787A2 WO 2006062787 A2 WO2006062787 A2 WO 2006062787A2 US 2005043298 W US2005043298 W US 2005043298W WO 2006062787 A2 WO2006062787 A2 WO 2006062787A2
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
bag
guide strips
starter cut
package bag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2005/043298
Other languages
English (en)
Other versions
WO2006062787A3 (fr
Inventor
Randy R. Mckellar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2006062787A2 publication Critical patent/WO2006062787A2/fr
Anticipated expiration legal-status Critical
Publication of WO2006062787A3 publication Critical patent/WO2006062787A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles

Definitions

  • This invention relates to packaging and more particularly to easy open bags and methods of manufacturing such bags.
  • Modern packaging for food and other products often uses sealed bags having seams at one or more ends of the bag and an exposed seam that usually runs the entire length of the rear of the bag.
  • Such bags have been conventionally made of a packaging material, such as a synthetic resin film or a laminated material formed by laminating the synthetic resin film and an aluminum foil or the like.
  • the package bag is filled with a material to be packed, such as liquids, powders or viscous materials, before being hermetically sealed.
  • U.S. patent 6,102,571 issued August 15, 2000 to Moteki et al also initiates the tear from the side of the bag then has a second tear-able zone for tearing through the rear seam.
  • U.S. patent 5,371,997 issued December 13, 1994 to Kopp et al describes a long and narrow bag with a longitudinal seam on one side of the bag with the tear being initiated from the side of the bag.
  • a package bag may be made from a sheet of flexible packaging material that has been folded along a longitudinal direction with the edges of the sheet brought together and sealed to form a longitudinal rear seam.
  • a starter cut is formed only in the rear seam to facilitate opening the package bag.
  • the package bag may be opened by pulling in opposite directions on the longitudinal seam at points on either side of the starter cut.
  • composition of matter for forming a package bag.
  • This composition of matter includes a sheet of flexible roll stock having one or more notches formed at spaced apart locations along one or more edges of the sheet. When the sheet is folded such that the edges meet and are sealed to form a longitudinal rear seam, the notches provide a starter cut only in the rear seam for opening package bags formed from the sheet.
  • FIGs. IA- 1C are three-dimensional diagram of package bags according to an embodiment of the present invention
  • FIG. 2 is a three-dimensional schematic diagram illustrating the manufacture and filling of bags according to another alternative embodiment of the present invention.
  • FIGs. 3A-3B are three-dimensional diagrams of rolls of material for forming a package bags according to an alternative embodiment of the present invention.
  • FIG. 4 is a three-dimensional schematic diagram illustrating the manufacture and filling of bags according to another alternative embodiment of the present invention.
  • FIG. IA depicts a package bag 100 according to an embodiment of the present invention.
  • the bag depicted in FIG. IA is a relatively simple type of bag known as a pillow bag or pillow pouch.
  • the bag 100 is generally made from a sheet of flexible packaging material that has been folded along a longitudinal direction. The side edges of the sheet have been brought together and sealed to form a longitudinal rear seam 102 disposed between the sides of the bag.
  • a starter cut 104 has been formed in the rear seam 102 to facilitate opening the package bag. End seams 106, 108 close the ends of the package bag 100 to seal products within it.
  • the package bag 100 may be opened by pulling in opposite directions on the longitudinal seam at points on either side of the starter cut.
  • the rear seam 102 usually lies flat against the package bag 100 but can easily be lifted to provide finger grab points on both sides of the starter cut 104.
  • Embodiments of the present invention work with any bag that has a seam that can be lifted from the bag.
  • the rear seam 102 may be formed perpendicular to the rear surface of the bag and then folded over to lay flat against the bag. This makes it very handy to pull the seam up and use it to provide finger grab points for tearing the bag open.
  • one or more guide strips 105, 107 are placed laterally across the package bag near the starter cut 104 to guide the tear that results when the rear seam 102 is pulled.
  • the guide strips are made of tear-resistant material, such as plastic that are formed onto or into the material of the bag 100.
  • a single guide strip may be used or, as shown in FIG. IA, two guide strips may be placed close together on either side of the starter cut to contain the tear between the two guide strips.
  • Embodiments of the present invention may be used with other types of bags having a longitudinal rear seam.
  • bags include a gusseted bag 110 and a flat bottom bag 120, respectively depicted in FIG. IB and FIG. 1C.
  • the gusseted bag 110 includes a rear longitudinal seam 112, starter cut 114 and end seams 116, 118 and special folds or gussets that give the bag a substantially rectangular cross-section.
  • the flat bottom bag 120 includes a rear longitudinal seam 122 and starter cut 124 an end seal 126 and folds and seals that provide both a rectangular cross section and a flat bottom 128.
  • Guide strips such as those described above, may also be used with the gusseted bag 110 and/or the flat bottom bag 120.
  • Package bags of the type described herein may be used to store any type of products commonly stored in sealed bags.
  • Such products include, but are not limited to snacks, such as potato chips and pretzels, coffee, cheese, produce, candy, frozen foods, sealed medical products such as bandages, tape medicine, detergent, chemical powders, cosmetics among many others.
  • FIG. 2 illustrates one example, among others, of a technique for packaging products in bags of the type described above.
  • a vertical form-fill system 200 forms the bags from a sheet of material 202.
  • the sheet may made of any suitable flexible material used in the packaging industry, examples of which include, but are not limited to, polyethylene (e.g. low density polyethylene (LDPE) or linear low density polyethylene (LLDPE), polypropylene, metallocene or laminated film.
  • LDPE low density polyethylene
  • LLDPE linear low density polyethylene
  • polypropylene metallocene or laminated film.
  • the sheet 202 may be in the form of a roll stock, e.g., a laminated film roll stock or surface printed roll stock. Materials for making bags are available, e.g., from Duralam, Inc. of Appleton, Wisconsin and other commercial suppliers.
  • the sheet 202 is drawn from a roll 204 over a series of rollers to a vertical form-fill tube 206.
  • the sheet 202 wraps around the form-fill tube 206 and the edges of the sheet 202 are brought together to form the sheet 202 into a tube.
  • a longitudinal sealer device 207 seals the edges of the sheet 202 together to form the rear seam 208 of a bag 210.
  • An end sealer 211 then seals one end of the bag 210. Typically the edges and ends are sealed by some combination of heat and pressure. After the end is sealed the bag 210 is filled through the form-fill tube 206. Then the second end is sealed to close the bag 210.
  • a shearing device 212 cuts the sheet 202 along the end seal to separate the bag from subsequent bag that is formed from the same sheet material 202. The shearing device 212 may leave part of the end seal on the bag 210 and part on the subsequent bag.
  • the starter cut described above can be made in the rear seam at any point in this procedure.
  • a notch-cutting device 214 e.g., a sliding knife can cut a notch 215 in the rear seam 208 to form the starter cut.
  • the notch-cutting device 214 is located between the longitudinal sealer device 207 and the end sealer 211.
  • the notch-cutting device may be located after the end sealer 211 or at some other convenient point in the system 200.
  • FIG. 3A depicts an example of a sheet of material 300 for forming bags that can be used to make package bags according to an embodiment of the present invention.
  • the material 300 e.g., any of the flexible materials described above, may be in the form of a sheet 302 of flexible roll stock which may be wound into a roll 304 suitable for use in a form-fill machine.
  • the sheet 302 has first and second surfaces 301, 303.
  • One surface 301 typically has no printing and serves as the inside of a bag.
  • the other surface 303 which may having printing on it, serves as the outside of the bag.
  • the printing may be done by conventional equipment, such as that provided by Paper Converting Machine Company of Green Bay Wisconsin.
  • the sheet is cut along lines indicated by D during forming and filling to separate individual bags from the sheet 302.
  • the sheet 302 may or may not be perforated along the lines D to facilitate separate of the bags.
  • One or more notches 306 are formed at spaced apart locations along one or more edges 308 of the sheet 302. When the sheet 302 is folded such that the edges 308 meet and are sealed to form a longitudinal rear seam, the notches 306 provide a starter cut for opening package bags formed from the sheet 302. In some embodiments a single notch is formed along one edge. In other embodiments, aligned notches 306 are formed in both edges 308 of the sheet 302. The aligned notches 306 overlap at least partially to form a starter cut all the way through the rear seam.
  • FIG. 3B depicts a material 310 that is a variation on the material 300 of FIG. 3A.
  • the material 310 may be in the form of a sheet 312 and may be wound into a roll 314.
  • the sheet 312 may be made from any suitable flexible bag-making material.
  • the sheet 312 includes guide strips 318 formed laterally across the sheet proximate notches 316. In the example depicted in FIG. 3B pairs of guide strips 318 are placed close together with a notch 316 between the two guide strips in each pair. Alternatively a single guide strip may be placed such that the notches lie between a guide strip and a location D where the sheet 312 is to be cut to separate one bag from another.
  • FIG. 4 illustrates one example, among others, of a technique for packaging products in bags of the type described above using the pre-notched roll stock of the types described in FIGs. 3A-3B.
  • a vertical form-fill system 400 forms the bags from a sheet of material 402.
  • the system 400 may be a Model VPK vertical/form/fill machine from Rovema Packaging USA of Lawrenceville, Georgia.
  • the sheet 402 already has notches 403 in its edges as described above with respect to FIG. 3A as well as lateral guide strips 405 as described above with respect to FIG. 3B.
  • the sheet 402 is drawn from a roll 404 over a series of rollers to a vertical form-fill tube 406.
  • the sheet 402 wraps around the form-fill tube 406 and the edges of the sheet 402 are brought together to form the sheet 402 into a tube.
  • the notches on opposite edges of the sheet 402 align and overlap to form the start cut 401.
  • a longitudinal sealer device 407 seals the edges of the sheet 402 together to form the rear seam 408 of a bag 410.
  • An end sealer 411 then seals one end of the bag 410 along the line indicated at D, the bag is filled through the form-fill tube 406 and the second end is sealed to close the bag 410.
  • a shearing device 412 may cut the sheet 402 along the end seal to separate the bag from subsequent bag that is formed from the same sheet material 402.
  • Embodiments of the present invention provide for easy opening bags with only minor modifications to existing packaging equipment and processes. Such easy open bags are more desirable for consumers and relatively inexpensive to manufacture compared to other types of easy open bags.
  • vertical form-fill-seal systems embodiments of the invention are not limited to such systems for making and filling bags.
  • Other bag filling and sealing systems such as horizontal fill machines and those that use pre- made bags, may be adapted to implement embodiments of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

L'invention concerne un sac de conditionnement pouvant être fabriqué à partir d'une bande de matériau de conditionnement flexible pliée dans le sens de la longueur, dont les bords sont ramenés ensemble et scellés pour former un joint arrière longitudinal. Le joint longitudinal comporte une découpe qui facilite l'ouverture du sac de conditionnement. Pour ouvrir le sac de conditionnement il suffit de tirer de chaque côté de la découpe dans des directions opposées par rapport au joint longitudinal. Ce sac de conditionnement peut être fabriqué à partir d'une bande de matériau de conditionnement flexible en rouleau comportant une ou plusieurs encoches réparties le long d'un ou plusieurs bords de la bande. Lorsque les bords de la bande sont ramenés ensemble et scellés pour former un joint arrière longitudinal du sac de conditionnement, les encoches fournissent une découpe permettant d'ouvrir le sac de conditionnement.
PCT/US2005/043298 2004-12-10 2005-11-28 Sacs a joint arriere facile a ouvrir et methodes de conditionnement associees Ceased WO2006062787A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/009,183 US20060126975A1 (en) 2004-12-10 2004-12-10 Easy opening rear seam bags and packaging methods
US11/009,183 2004-12-10

Publications (2)

Publication Number Publication Date
WO2006062787A2 true WO2006062787A2 (fr) 2006-06-15
WO2006062787A3 WO2006062787A3 (fr) 2007-11-15

Family

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Application Number Title Priority Date Filing Date
PCT/US2005/043298 Ceased WO2006062787A2 (fr) 2004-12-10 2005-11-28 Sacs a joint arriere facile a ouvrir et methodes de conditionnement associees

Country Status (2)

Country Link
US (2) US20060126975A1 (fr)
WO (1) WO2006062787A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010037399A1 (fr) * 2008-10-03 2010-04-08 Beanstalk Aps Formation de prédécoupes
WO2014085085A1 (fr) * 2012-11-30 2014-06-05 The Procter & Gamble Company Sac à ouverture facile
CN105129121A (zh) * 2015-09-25 2015-12-09 锦麒生物科技（安徽）有限公司 一种条袋包装机
CN108328099A (zh) * 2018-02-06 2018-07-27 杭州丙甲科技有限公司 一种带开口的包装袋及其制作和封装方法

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US20060126975A1 (en) * 2004-12-10 2006-06-15 Mckellar Randy R Easy opening rear seam bags and packaging methods
US7331153B1 (en) 2006-08-31 2008-02-19 Sealed Air Corporation (Us) Apparatus and method for creating easy to open packages
US7815050B2 (en) * 2006-10-12 2010-10-19 Mckee Foods Kingman, Inc. Flexible snack package with finger wiping feature
US7857135B2 (en) * 2006-10-12 2010-12-28 Mckee Foods Kingman, Inc. Flexible composite snack package
US20090108019A1 (en) * 2007-10-30 2009-04-30 Gino Kronfle Ice cream packaging
US8230664B2 (en) * 2008-07-28 2012-07-31 Sonoco Development, Inc. Pouch opening feature and method for making the same
US20110150371A1 (en) * 2008-07-28 2011-06-23 Sonoco Development, Inc. Flexible Pouch With Easy-Opening Features
US8297841B2 (en) * 2010-02-05 2012-10-30 Sonoco Development, Inc. Tubular package
US8814430B2 (en) 2010-02-23 2014-08-26 Kraft Foods R&D, Inc. Food package having opening feature
DE102010028394B4 (de) * 2010-04-29 2019-05-23 Windmöller & Hölscher Kg Verfahren und eine Vorrichtung zur Herstellung und Befüllung von Verpackungsmitteln
MX2017011162A (es) 2015-03-18 2017-11-09 Kellog Co Bolsa erguida de fondo plano, sistema de llenado y sellado de modelo vertical y metodologia para utilizar el mismo.
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BR112018007807A2 (pt) 2015-11-16 2018-10-30 Automated Packaging Systems Inc folha contínua de bolsas pré-formadas, e, método para formação de embalagens
US10712160B2 (en) 2015-12-10 2020-07-14 Uatc, Llc Vehicle traction map for autonomous vehicles
US9840256B1 (en) 2015-12-16 2017-12-12 Uber Technologies, Inc. Predictive sensor array configuration system for an autonomous vehicle
US9841763B1 (en) 2015-12-16 2017-12-12 Uber Technologies, Inc. Predictive sensor array configuration system for an autonomous vehicle
US9990548B2 (en) 2016-03-09 2018-06-05 Uber Technologies, Inc. Traffic signal analysis system
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MX2019010871A (es) * 2017-03-21 2019-12-11 Philip Morris Products Sa Metodo de apertura de un empaque para bienes de consumo y empaque para bienes de consumo asi como un metodo para fabricar dicho empaque.
US11542060B2 (en) 2017-03-21 2023-01-03 Altria Client Services Llc Package for consumer goods and method for manufacturing a tear-open package
US11334753B2 (en) 2018-04-30 2022-05-17 Uatc, Llc Traffic signal state classification for autonomous vehicles
CN111099083A (zh) * 2020-01-06 2020-05-05 纷美(北京)贸易有限公司 密封包装组
DK4015406T3 (da) * 2020-12-18 2023-11-06 Msk Verpackung Syst Gmbh Indretning og fremgangsmåde til at introducere en åbning i et delområde af en filmemballage af en varestabel, fortrinsvis anbragt på en palle, hvor filmemballagen fortrinsvis er designet som et filmdække trukket over varestablen eller som en filmbanderole der i det mindste delvist omgiver varestablen
JP7723264B2 (ja) * 2021-09-24 2025-08-14 キョーラク株式会社 包装袋

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Publication number Priority date Publication date Assignee Title
WO2010037399A1 (fr) * 2008-10-03 2010-04-08 Beanstalk Aps Formation de prédécoupes
WO2014085085A1 (fr) * 2012-11-30 2014-06-05 The Procter & Gamble Company Sac à ouverture facile
CN104822598A (zh) * 2012-11-30 2015-08-05 宝洁公司 易打开袋
CN104822598B (zh) * 2012-11-30 2017-03-08 宝洁公司 易打开袋
CN105129121A (zh) * 2015-09-25 2015-12-09 锦麒生物科技（安徽）有限公司 一种条袋包装机
CN108328099A (zh) * 2018-02-06 2018-07-27 杭州丙甲科技有限公司 一种带开口的包装袋及其制作和封装方法

Also Published As

Publication number Publication date
US20060126975A1 (en) 2006-06-15
US20070237434A1 (en) 2007-10-11
WO2006062787A3 (fr) 2007-11-15

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